Update aftdb.py

aftdb.py

@@ -176,7 +176,7 @@ class AFT_Dataset(datasets.GeneratorBasedBuilder):
                         _id_img = path.split('.')[0]
                         _jpg = True
                     if _json and _jpg:
-                        assert _id_json != _id_img
+                        assert _id_json == _id_img
                         _json, _jpg = False, False
                         yield metadata['id'], {
                             'id': metadata['id'],